SARA CHOI DO
NPI 1346876349
Internal Medicine in Fullerton, CA
About Sara Choi Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SARA CHOI DO (NPI 1346876349) is an individual internal medicine provider in Fullerton, California, licensed in California (20A19511) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS and is a graduate of Midwestern University, Chicago College Of Osteopathic Med (2020).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Sara Choi Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Sara Choi reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Brea, CA 92821
- Reassigned Medicare billing, California enrollment
- 1,699 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92835 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FULLERTON, CA 92835
FULLERTON, CA 92835
FULLERTON, CA 92835
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Sara Choi's NPI number?
The NPI number for Sara Choi is 1346876349. It was assigned to this individual provider in the NPPES registry on March 21, 2020.
Where is Sara Choi located?
Sara Choi practices at 101 E Valencia Mesa Dr, Fullerton, CA 92835. The listed phone number is (714) 992-3969.
What is Sara Choi's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Sara Choi enrolled in Medicare?
Yes. Sara Choi is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Sara Choi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sara Choi reassigns Medicare benefits to Providence Medical Foundation (Brea, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sara Choi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Sara Choi was last updated on August 14, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Sara Choi, DO · NPI 1346876349
Internal Medicine physician in Fullerton, California. Individual provider, active in the CMS NPPES registry since March 21, 2020.
## Identity
- **NPI:** 1346876349 (Entity type: Individual)
- **Enumerated:** March 21, 2020
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 20A19511 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 101 E VALENCIA MESA DR, Fullerton, CA 92835-3809
- **Phone:** (714) 992-3969
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Providence Medical Foundation (NPI 1871607762, Brea, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Midwestern University, Chicago College Of Osteopathic Med, class of 2020
## Record status
- **NPPES last updated:** August 14, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1346876349) · Data from the CMS NPPES public registry.